chore: Remove `REACT_APP_FEEDBACK_FISH_ID` from env #4500

Job	Run time
Check file changes	7s
Run Integration tests	5m 25s
E2E tests	9m 47s
Run API Tests	0s
Build React App	0s
Generate Hasura Change Summary	0s
Run React Tests	5m 12s
Run Pulumi Preview	0s
Upsert Vultr Instance	0s
Run Healthcheck on Pizza Services	0s
	20m 31s

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